Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e36cc8162082b3b…

MALICIOUS

PDF

306.5 KB Created: 2022-01-09 03:35:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 22e91795abeebd47a4e914d6dd15fd37 SHA-1: 2cbdb569e1502bdf0ac337036096bc96c9b135b5 SHA-256: 4e36cc8162082b3b87b81b60ebcf48d5ebf3f6e9bca02496329b2f6f952886d1
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7601

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/a58f868bff80526bd928cca1a9f802a8/7913356807.pdf In PDF document text
    • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/161da23d81bc07---14449190005.pdfIn PDF document text
    • http://rajasthanmetals.com/userfiles/file/1254253448.pdfIn PDF document text
    • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1614bfddab1402---2966840167.pdfIn PDF document text
    • http://stlnsk.ru/uploads/file/lefir.pdfIn PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1619004070d5aa---82654003048.pdfIn PDF document text
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161aff23e1acab---muwodaxu.pdfIn PDF document text
    • http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/74958850958.pdfIn PDF document text
    • http://maksimetall.ru/files/36698433693.pdfIn PDF document text
    • http://nishikizushi.com/js/kcfinder/upload/files/niwalajenew.pdfIn PDF document text
    • http://energosol.pl/images_cms/file/53259077788.pdfIn PDF document text
    • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/h7iiic0u5ckrboa9q54p11m9u1/59239899796.pdfIn PDF document text
    • https://dermatologie-francophone.com/userfiles/file/doteg.pdfIn PDF document text
    • http://glassick.com/userfiles/file/xazapadedatilavaxomeloto.pdfIn PDF document text
    • http://xn----8sbkebltdkywd.xn--p1ai/ckfinder/userfiles/files/28360275522.pdfIn PDF document text
    • https://afmiletisim.afmiletisimajansi.info/resimler/files/ruputogofevat.pdfIn PDF document text
    • https://autoprofi.ua/userfiles/file/lefusidekarutosejeju.pdfIn PDF document text
    • http://tnslib.su/userfiles/files/bitikivuxonubazajovokemon.pdfIn PDF document text
    • http://studiotecnicomartani.eu/userfiles/files/zewekedogirofevoluzum.pdfIn PDF document text
    • http://limoride.net/gallery/file/jofifizomis.pdfIn PDF document text
    • http://nobody-films.com/bpms/includes/fckeditor_uploads/userfiles/file/mipexagaxanamo.pdfIn PDF document text
    • http://lotusburbank.com/uploads/files/57414159582.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/u-9XGpgKpwY/uplcv?utm_term=toyota+aqua+2014+manualPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00045382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45382 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00046a26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46A26 10472 bytes
SHA-256: 7a75bd5014255a8856776d49172d85a55f2ac2f2a24acc9881ad469a79ece925
font_02_sfnt_off0004820c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4820C 18172 bytes
SHA-256: ecb16764d09fe66ad4bf7feaeb9e6cc79c6359da0e9a929f658ce5c2f422f9c0
font_03_sfnt_off0004b0b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B0B3 2216 bytes
SHA-256: f09c94123a362d4c5aad88d3b167d4a73621731e68c8e58aaaa3606790b66056